US2981783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular type plates for electric accumulators
Assignee: Chloride Batteries Ltd
•
Filing: 1958-05-23
•
Granted: 1961-04-25
•
Expires: 1978-05-23
Abstract
No abstract record available.
Inventors
- 👤 Bushrod Charles James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:38
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M4/76; H01M4/765; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2204859A
Cited
US2176428A
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US2305121A
Cited
US2343970A
Cited
US2420456A
Cited
US2497376A
Cited
GB757102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |